Objectives and Key Results (OKRs) is a simple process of setting company, department and team goals and connecting each goal with 3-5 measurable results.
As you achieve those results, the whole objective feeds into overall completion. It’s all about focus, so only any level you should limit yourself to 3-4 objectives, not more.
There’s a bunch of great examples of OKRs at okrexamples.co.
